Download or read book Mechanisms and Regulation of Natural Killer NK Cell Mediated Cytotoxicity written by Urban Ramstedt and published by . This book was released on 1988 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Mechanisms Involved in Regulation of Natural Killer NK Cell Mediated Cytotoxicity written by Zvi Reiter and published by . This book was released on 1990 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nk Cell Mediated Cytotoxicity written by Eva Lotzova and published by CRC Press. This book was released on 1992-03-17 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a state-of-the-art survey of developments in the field of NK cell-cancer cell interactions, activation, and oncolytic signaling. Specific topics discussed include NK cell receptors and adhesion molecules, signal transduction and activation, and mechanisms of cytotoxicity. The book will be an excellent learning tool and reference resource for scientists, clinicians, and students.
Download or read book Natural and Induced Cell Mediated Cytotoxicity written by Gert Riethmüller and published by Academic Press. This book was released on 2014-06-28 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural and Induced Cell-Mediated Cytotoxicity: Effector and Regulatory Mechanisms contains the proceedings of the Erwin Riesch Symposium organized on the occasion of the Fifth Centennial of the University of Tübingen in Germany on October 20-23, 1977. The symposium provided a forum for reviewing the progress that has been made in understanding the effector and regulatory mechanisms underlying natural and induced cell-mediated cytotoxicity. Topics covered range from the immunobiology of natural killer cells to the role of macrophages as regulator, accessory, and effector cells in cytotoxicity. Comprised of 27 chapters, this book begins by analyzing the characteristics of natural cytotoxic cells in mice, followed by a discussion on the generation in vivo of mouse natural cytotoxic cells and the role of cytotoxic T cells in the local defense against solid tumors. Subsequent chapters focus on the natural cytotoxicity of human lymphocytes; opposing effects of interferon on natural killer and target cells; susceptibility of cloned melanoma to natural cytotoxicity; and cell-mediated immunity against avian virus-induced tumor cells. The book also examines alternative routes of entry for cell surface antigens into the immune system before concluding with a chapter that considers interferon induction by Corynebacterium parvum. This monograph should be of value to students, researchers, and practitioners in the fields of biology and immunology.
Download or read book Mechanisms of Cytotoxicity by NK Cells written by Ronald Herberman and published by Elsevier. This book was released on 2012-12-02 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanisms of Cytotoxicity by NK Cells is the resulting book of a workshop focused on the studies that enhance understanding of the basic mechanisms involved in the function and regulation of NK cells. The book presents the status of knowledge of the mechanisms responsible for the cytotoxic effects of NK cells and the regulation of their activity. The text is further divided into five major sections according to the sequence of the workshop sessions. A separate chapter from the sections has been included at the beginning of the book. The introductory chapter clarifies some points in the subject area of NK cells, particularly its definition. The heterogeneity of NK cells is also discussed in this chapter. Then, the book presents the major topics, including the purification and characterization of NK cells and NK target structures and recognition sites. The mechanisms of postrecognition interactions between NK cells and targets; regulation of NK activity and NK cells; and cultured cells with NK-like activity are also discussed. This book will serve as a helpful guide to students and professionals (scientists, researchers, and professors) in the fields of immunology, biology, microbiology, biochemistry, among others.
Download or read book NK Cells and Other Natural Effector Cells written by Ronald B. Herberman and published by Elsevier. This book was released on 2012-12-02 with total page 1607 pages. Available in PDF, EPUB and Kindle. Book excerpt: NK Cells and Other Natural Effector Cells reviews the state of knowledge on NK cells and other natural effector mechanisms. The coverage of immune effector systems ranges from basic studies on their nature, regulation, and mechanisms of action to important practical issues such as their role in host resistance, their modulation by therapeutic intervention, and alterations of their activity in disease. The book is organized into 12 parts. Parts I and II examine the characteristics of NK cells and other natural effector cells, respectively. Part III focuses on the cell lineage of NK and related effector cells, providing evidence for or against T cell lineage, for or against macrophage lineage, and for or against other or separate lineage. Part IV deals with the genetics of natural resistance in the mouse and rat. Part V presents studies on the regulation of cytotoxic activity. Part VI examines the specificity of natural effector cells, covering the nature of target cell structures and the nature of recognition receptors in effector cells. Part VII discusses the cytotoxicity by cultured lymphoid cells while Part VIII turns to the mechanisms of cytotoxicity. Part IX deals with natural cell-mediated reactivity against primary tumor cells and against non-tumor targets. Part X examines NK cell tumors or the presence of NK cells at the site of tumor growth. Part XI presents clinical studies with natural effector cells. Part XII provides evidence for in vivo reactivity of natural effector cells.
Download or read book Mechanisms of lymphocyte mediated cytotoxicity in health and disease written by Cosima T. Baldari and published by Frontiers Media SA. This book was released on 2023-06-29 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mechanism of Resistance of Oral Carcinoma Cells to Natural Killer Cell mediated Cytotoxicity written by Hiromi Nakamura and published by . This book was released on 2003 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular mechanisms regulating cytotoxic lymphocyte development and function and their associations to human diseases written by Konrad Krzewski and published by Frontiers Media SA. This book was released on 2015-04-22 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nothing provided
Download or read book Natural Killer Cells written by Mourad Aribi and published by BoD – Books on Demand. This book was released on 2017-12-13 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book Natural Killer Cells is the result of a collective work that addresses in a clear and comprehensive way for readers and through as many sensuous details as possible, the most and various fundamental aspects of natural killer cells, as well as their clinical applications in cancer immunotherapy. This book will serve as an invaluable resource and pedagogical support for clinicians, researchers, basic scientists, immunology and immunopathology lecturers, as well as for students in biology and medicine, especially the ones with an advanced understanding of immunology.
Download or read book NK Cell Subsets in Health and Disease New Developments written by and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural Killer (NK) cells were discovered ca 1975, as the first group of lymphoid cells that were neither T cells nor B cells. Since then, the dissection of the biology of NK cells has been growing exponentially with many seminal discoveries from the identification of MHC class I-specific inhibitory receptors to the discovery of receptor-ligand pairs involved in NK cell activation and to the manipulation of NK cells in cancer. In this research topic, we asked a group of thought leaders in NK cell biology to review recent advances in their origins and biology, and their roles in cancer, infection and inflammation. Together, these 25 articles provide a timely survey of NK cells as critical immunologic components of health and disease. They will hopefully prompt further dialogue and developments in basic and translational immunology.
Download or read book Evolution of NK mediated target recognition under the pressure of physiologic or pathologic stimuli written by Massimo Vitale and published by Frontiers Media SA. This book was released on 2015-03-23 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since their discovery NK cells have come out as potential tools to fight cancer and viruses. This finding early urged different groups to study the mechanisms governing NK cell function. The identification of the MHC-I-specific inhibitory receptors (i.e. KIRs, NKG2A and certain Ly49 molecules) allowed defining rather rapidly how NK cells could avoid self-aggression and how they could be directed towards targets that were forced, by viral infection or tumor transformation, to down-regulate MHC-I expression. In a second time, also the repertoire of surface activating receptors addressing NK cytotoxicity towards tumors and pathogens was mostly defined. In spite of the first findings, however, most recent studies may suggest that NK cells and their receptors might not have been evolved to kill tumor targets and, perhaps, they might have been only partially influenced, in their evolution, by the need of recognizing viruses. Indeed certain NK receptors known to activate NK cell cytotoxicity (NKp30, DNAM-1, NKp80) can also participate at regulatory interactions occurring between NK and myeloid cells. In addition, a peculiar NK cell subset which intensively populate decidua during the first trimester of pregnancy, through the engagement of specific receptors and the interaction with decidual DC, produce chemokines and pro-angiogenic cytokines, and induce Tregs. Thus, in this context, NK cells favor decidua vascularization and development of the (semiallogeneic) foetus in a tolerant environment. Viruses have nevertheless played an important role in shaping the NK cell receptor repertoire. Several studies have unveiled clues of the evolutionary struggle between these pathogens and NK cells. Different NK receptors, including NKp46, NKp30, NKp44, NKG2D, NKG2C, Ly49, and certain KIRs have been demonstrated to recognize virus-encoded or virus-induced ligands. The expression of TLR specifically recognizing microbial products, together with the unexpected role of KIR3DL2 in shuttling these products to TLR-containing endosomes have also been documented in NK cells. On the other side, different viral immune evasion molecules have been shown to interfere with the expression of ligands for T or NK cell activating receptors. In addition, viral infections can occur in the reproductive stage of life cycle, and may represent a serious threat for the species propagation. Thus the control of viruses, together with the maintenance of foetus during pregnancy, should represent major evolutionary forces in shaping NK-receptors. Along this line, the NK-mediated control of tumors should not be under the same evolutionary pressure, as tumors mostly appear later in the life cycle, and the recognition of tumor-encoded ligands may be less efficient (as the NK cell receptors might have not been selected for such aim). This may be the reason why, although displaying strong antitumor activity in vitro, NK cells could hardly contain tumor burden in vivo. In addition the pathogen-driven evolution of NK cell function may also favor the role of NK cells in the insurgence of immune-mediated diseases. This research topic will collect contributions that may clarify the relationships between the evolution of the NK receptors and their role in an efficient recognition of viruses and tumor cells or in immune-mediated diseases.
Download or read book Molecular Strategies Aimed to Boost NK Cell based Immunotherapy of Cancer written by Loredana Cifaldi and published by Frontiers Media SA. This book was released on 2020-07-31 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this Research Topic, we would like to honor the memory of Prof. Vito Pistoia and pay tribute to his scientific contributions to the field of Cancer Immunity and Immunotherapy. Topic Editor Daniel Olive is the co-founder and shareholder of company Imcheck Therapeutics. All other topic editors declare no competing interests with regards to the Research Topic subject.
Download or read book Tailoring NK Cell Receptor Ligand Interactions an Art in Evolution 2nd Edition written by Ulrike Koehl and published by Frontiers Media SA. This book was released on 2018-11-13 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recognition and killing of aberrant, infected or tumor targets by Natural Killer (NK) cells is mediated by positive signals transduced by activating receptors upon engagement of ligands on target surface. These stimulatory pathways are counterbalanced by inhibitory receptors that raise NK cell activation threshold through negative antagonist signals. While regulatory effects are necessary for physiologic control of autoimmune aggression, they may restrain the ability of NK cells to activate against disease. Overcoming this barrier to immune surveillance, multiple approaches to enhance NK-mediated responses are being investigated since two decades. Propelled by considerable advances in the understanding of NK cell biology, these studies are critical for effective translation of NK-based immunotherapy principles into the clinic. In humans, dominant inhibitory signals are transduced by Killer Immunoglobulin Like Receptors (KIR) recognizing cognate HLA class I on target cells. Conversely, KIR recognition of “missing self-HLA” - due to HLA loss or HLA/ KIR mismatch - triggers NK-mediated tumor rejection. Initially observed in murine transplant models, these antitumor effects were later found to have important implications for the clinical outcome of haplotype-mismatched stemcell transplantation. Here, donor NK subsets protect against acute myeloid leukemia (AML) relapse through missing self recognition of donor HLA-C allele groups (C1 or C2) and/or Bw4 epitope. These studies were subsequently extended by trials investigating the antileukemia effects of adoptively transferred haplotype-mismatched NK cells in non-transplant settings. Other mechanisms have been found to induce clinically relevant NK cell alloreactivity in transplantation, e.g., post-reconstitution functional reversal of anergic NK cells. More recently, activating KIR came into the spotlight for their potential ability to directly activate donor NK cells through in vivo recognition of HLA or other ligands. Novel therapeutic monoclonal antibodies (mAb) may optimize NK-mediated effects. Examples include obinutuzumab (GA101), a glyco-engineered anti-CD20 mAb with increased affinity for the FcγRIIIA receptor, enhancing antibody-dependent cellular cytotoxicity; lirilumab (IPH2102), a first-in-class NK-specific checkpoint inhibitor, blocking the interaction between the major KIR and cognate HLA-C antigens; and elotuzumab (HuLuc63), a humanized monoclonal antibody specific for SLAMF7, whose anti-myeloma therapeutic effects are partly due to direct activation of SLAMF7-expressing NK cells. In addition to conventional antibodies, NK cell-targeted bispecific (BiKEs) and trispecific (TriKEs) killer engagers have also been developed. These proteins elicit potent effector functions by binding target ligands (e.g., CD19, CD22, CD30, CD133, HLA class II, EGFR) on one arm and NK receptors on the other. An additional innovative approach to direct NK cell activity is genetic reprogramming with chimeric antigen receptors (CAR). To date, primary NK cells and the NK92 cell line have been engineered with CAR specific for antigens expressed on multiple tumors. Encouraging preclinical results warrant further development of this approach. This Research Topic welcomes contributions addressing mechanisms of NK-mediated activation in response to disease as well as past and contemporary strategies to enhance NK mediated reactivity through control of the interactions between NK receptors and their ligands.
Download or read book Cytotoxic Cells written by M. V. Sitkovskii and published by Lippincott Williams & Wilkins. This book was released on 2000 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume synthesizes recent groundbreaking advances in our knowledge of the molecular mechanisms, biological roles, and medical applications of cytotoxic lymphocytes. Leading investigators examine current concepts on the recognition of antigen by T-cell receptors; the molecules mediating target recognition by natural killer cells; the intracellular signalling cascades triggered by these molecules; and the effector molecules that damage target cells. The contributors present new insights into the roles of cytotoxic lymphocytes in vivo in immune regulation, autoimmunity, antiviral resistance, and tumor surveillance. Several chapters explore potential medical applications of cytotoxic lymphocytes, including vaccines, tumor therapy, and treatment of HIV infection.
Download or read book Quantitation of and Regulatory Mechanisms in Human Natural Killer NK Cell Cytotoxicity written by Måns Ullberg and published by . This book was released on 1983 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NK Cell Subsets in Health and Disease New Developments written by Emanuela Marcenaro and published by Frontiers Media SA. This book was released on 2017-11-29 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural Killer (NK) cells were discovered ca 1975, as the first group of lymphoid cells that were neither T cells nor B cells. Since then, the dissection of the biology of NK cells has been growing exponentially with many seminal discoveries from the identification of MHC class I-specific inhibitory receptors to the discovery of receptor-ligand pairs involved in NK cell activation and to the manipulation of NK cells in cancer. In this research topic, we asked a group of thought leaders in NK cell biology to review recent advances in their origins and biology, and their roles in cancer, infection and inflammation. Together, these 25 articles provide a timely survey of NK cells as critical immunologic components of health and disease. They will hopefully prompt further dialogue and developments in basic and translational immunology.
